121001122020200 has 48 divisors (see below), whose sum is σ = 281411065503360. Its totient is φ = 48386090648000.

The previous prime is 121001122020199. The next prime is 121001122020203. The reversal of 121001122020200 is 2020221100121.

It is not an unprimeable number, because it can be changed into a prime (121001122020203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89062616 + ... + 90411015.

It is an arithmetic number, because the mean of its divisors is an integer number (5862730531320).

Almost surely, 2^{121001122020200} is an apocalyptic number.

121001122020200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121001122020200 is an abundant number, since it is smaller than the sum of its proper divisors (160409943483160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121001122020200 is a wasteful number, since it uses less digits than its factorization.

121001122020200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179477018 (or 179477009 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121001122020200 its reverse (2020221100121), we get a palindrome (123021343120321).

The spelling of 121001122020200 in words is "one hundred twenty-one trillion, one billion, one hundred twenty-two million, twenty thousand, two hundred".